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प्रश्न
Summarize the rules for writing of distribution of electrons in various shells for the first eighteen elements.
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उत्तर
The distribution of elements in different orbits is determined by the Bohr-Bury scheme. There are the following rules:
- The formula 2n2 represents the maximum number of electrons in any shell, where n equals the number of orbits.
- The outermost shell can accept up to eight electrons.
- Electrons in an atom do not enter a new shell until all of the inner shells are filled.
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संबंधित प्रश्न
Name the shell of an atom which can accommodate a maximum of :
(a) 2 electrons ?
(b) 18 electrons ?
Give scientific reason.
Atoms are stable though negatively charged electron is revolving within it.
Define the term of the electron.
What are ‘energy levels’?
The following element is given \[\ce{_9W}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
Explain the octet rule for the formation of –
Sodium chloride from a sodium atom and a chlorine atom.
Select the correct answer from the answer in the bracket to complete the sentence.
The maximum number of electrons in M-shell is _______.
State true or false. If false, correct the statement.
The maximum number of electron in L Shell is 10.
For an atom ‘X’, K, L and M shells are completely filled. How many electrons will be present in it?
The electronic configuration of an atom is 2,8,3. The valency of the atom is ______.
